Sash fastener and tightener.



N. S. HILLYARD.

' PATENTED SEPT; a, 1907.

SASH FASTBNBR AND TIGHTENER.

APPLICATION FILED MAR. 28, 1907.

WITNESSES:

N WM

fl '15 uamns PETERS cQ WA'SMINMON, n. c.

- INVENTOR-' urr S.

A TTORNE Y UNITED STATES NEWTON S. I'IILLYARD, OF ST. JOSEPH, MISSOURI.

SASH FASTENER AND TIGHTENER.

Specification of Letters Patent.

Patented Sept. 3, 1907.

Application filed March 28, 1907. Serial No. 365.076.

To all whom it may concern:

Be it known that I, NEWTON S. HILLYARD, a citizen of the United States,residing at St. Joseph, in the county of Buchanan and State of Missouri,have invented certain new and useful Improvements in Sash Fasteners andTighteners; and I do declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same, referencebeing had to the accompanying drawings, and to the letters and figuresof reference marked thereon, which form a part of this specification.

My invention relates to improvements in the class of window sashfasteners and tighteners upon which I was granted Letters Patent, No.770,099, by the United States Patent Office on the 13th. day ofDecember, 1904, in which ventilation at top or bottomof sashes, orsimultaneously, may be had, that offers equal protection from burglars,whether the sashes are open or closed, and that tightens the sashes,when closed, to a degree that prevents the entrance of dust and air.

I accomplish my object by the mechanism hereinafter described and shownby the accompanying drawings, in which,

Figure 1 is a perspective of a sash lock and plate in position with ameeting-rail and stile of the lower and upper sashes of a window, brokenaway; Fig. 2 is a view of the underside of a lock case with a bolt andspring therein, shown in the position occupied when locked; Fig. 3 is aview of the same, the .bolt and spring in the position occupied whenunlocked; Fig. 4 is a front view of the lock case showing therein avertical slot adapted to support the thumb piece end of the lock boltFig. 5 is a rear view of the lock case showing two vertical slots, oneto support the narrowed end of the bolt, the other to receive thereversed end of the bolt for locking the device; Fig. 6 is a detailperspective of the bolt, and Fig. 7 is a detail of the lock bolt in theposition occupied when held automatically unlocked, its forward shoulderpressed into engagement with the front of the case just below the slot.

Similar letters refer to similar parts in the several views.

In my device A represents the upper and B the lower sash of a window,broken away.

C is a metal plate adapted to be attached to the face of a stile of theupper sash. D D are perforations in the edge of said plate; this plateprojects beyond the face of the inner edge of said stile, as shown inFig. 1.

E is a lock case, preferably rhombiform, rigidly at tached on the top ofthe meeting-rail of the lower sash on the same side of the window withplate O. Said case is provided with flanges E E and perforations e e,

through which it may be fastened with screws or otherwise, on saidmeeting-rail.

II is the body of a lock bolt made from a flat strip of metal, setedgewise, its lock end H being of reduced size, as shown in Fig. 6. Itsthumb piece I is bent upward and slightly backward from bottom to top.The narrowed lock end H of the bolt is bent near its end first, to anoblique angle to conform to the slope of the rear end of the lock case,and second, backward on a line parallel with the shank of the bolt. Thefront of the case is provided with a vertical slot J corresponding insize and shape with the body of the lock bolt. The rear of the case isprovided with slots J and J the height of each being less than that ofslot J. The body of said bolt at the bottom just back of neck i of thethumb piece is provided with a shoulder K; at its opposite end with acorresponding lower shoulder K and an upper shoulder K The body of thebolt operates through front slot J and the reduced or narrowed part ofthe bolt through slot J, the backwardly turned bolt end L of the lockbolt engaging with slot J 2 when the oblique angle of the bolt is inengagement with plate O. This bolt being flat and carried in slots ofcorresponding form and size, its movement is exact, and being withoutany revoluble movement, and its end L being flat and tapering and theapertures in plate 0 being of circular form, the automatic engagementwith said apertures is at all times assured, regardless of the play ofthe sash, and when the sashes are closed their meeting-rails are drawnautomatically to a horizontal with each other and any sag of the uppersash is wholly obviated.

A spiral spring 0 encircles part H of the bolt; it is held in positionat one end by the rear end of the lock case, and at the other end byshoulders K and K The purpose of shoulder K is to allow the front end ofsaid bolt when unlocked by a slight downward pressure on thumb piece I,to drop into engagement with the front of the lock case just below slotJ, thus permitting the hand of the operator to be released while a sashis being raised or lowered. The flattened or rectangular shape of saidbolt operating in slots of corresponding shape is essential to securesure and instant automatic engagement with the perforations in plate 0and with slot J and wholly overcomes the somewhat uncertain automaticengagement of a circular bolt caused by the revoluble motion incident tothe form of such bolt swerving its end slightly to one side of theperforation. The steady movement of the bolt herein described togetherwith its taper end render the locking movement absolutely certain.

What I claim and desire to obtain by Letters Patent, is

In an adjustable sash fastener and tightener the combination with aperforated plate attached on the face of a stile of an upper sash, of alock case of rhomboidal form rigidly attached forward of said plate onthe meeting-rail of a lower sash provided with a vertical slot in itsfront and two shorter vertical slots in its rear, a flat lock bolt setedgewise, adapted to travel through said front slot, and

its narrowed end adapted to travel in one of said rear toward the topslightly backward, to assist in carrying slots, a shoulder on said boltadapted to engage with the the front shoulder down into engagement withthe case,

front of the case at the bottom of the front slot and autosubstantiallyas shown and set forth.

matically hold said bolt in unlocked position, upper and 5 lowershoulders vertical with each other on said bolt and a spiral springencircling said narrowed end of the bolt In testimony whereof, I afiixmy signature, in presence of two witnesses.

engaging said shoulders, the oblique angle in said narrowed NEWTONHILLYARD' end of the bolt, and the reverse taper end thereof, adaptedWitnesses: to engage with the perforations in said plate and with theEVANGELINE 0. GIBBONS,

10 slots in the rear of the case, and a thumb piece bearing JnssinKELLY.

